Ch1 S1 Discovering Cells Quiz

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| By Willi Colbert
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Willi Colbert
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Quizzes Created: 1 | Total Attempts: 413
Questions: 10 | Attempts: 413

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Ch1 S1 Discovering Cells Quiz - Quiz

Cell Structure and Function Chapter 1 Section 1 Discovering Cells


Questions and Answers
  • 1. 

    Cells are the basic units of _________________ and ______________ in living things.

    Explanation
    Cells are the basic units of structure and function in living things. This means that cells are responsible for both the physical organization and the various processes that occur within an organism. The structure of a cell determines its specific function, and different types of cells have specialized structures and functions that contribute to the overall functioning of an organism. Therefore, understanding the structure and function of cells is essential for understanding the complexity and functionality of living organisms.

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  • 2. 

    A ___________ is an instrument that makes small objects look larger.

    Explanation
    A microscope is an instrument that uses a combination of lenses to magnify small objects, allowing them to be seen in greater detail. It works by focusing light onto the object and then magnifying the image using a series of lenses. This enables the user to observe objects that are too small to be seen with the naked eye. The correct answer, microscope, accurately describes this instrument and its purpose.

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  • 3. 

    A light microscope that has more than one lens is called a compound microscope.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    A compound microscope is a type of light microscope that uses multiple lenses to magnify the image of a specimen. This allows for higher magnification and resolution compared to a simple microscope, which only has one lens. Therefore, the statement that a light microscope with more than one lens is called a compound microscope is true.

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  • 4. 

    _________________ was one of the first to observe cells.

    Correct Answer
    Robert Hooke
    Explanation
    Robert Hooke was one of the first scientists to observe cells. He made this observation in 1665 when he examined thin slices of cork under a microscope. Hooke described the small compartments he saw as "cells" because they reminded him of the cells in a monastery. This observation was significant because it laid the foundation for the field of cell biology and our understanding of the structure and function of living organisms.

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  • 5. 

    Anton van Leeuwenhoek observed tiny objects.  He called these single-celled organisms molecules.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Anton van Leeuwenhoek observed tiny objects, but he did not call these single-celled organisms "molecules." He actually referred to them as "animalcules" or "little animals." Therefore, the statement is false.

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  • 6. 

    In 1838, ____________ concluded that all plants were made of cells.

    Correct Answer
    Matthias Schleiden
    Explanation
    Matthias Schleiden is the correct answer because he concluded in 1838 that all plants were made of cells. This discovery was a significant contribution to the understanding of cell theory, which states that cells are the basic structural and functional units of all living organisms. Schleiden's work paved the way for further advancements in the field of biology and our understanding of the fundamental building blocks of life.

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  • 7. 

    ________________ is the ability to make things look larger than they really are.

    Correct Answer
    Magnification
    Explanation
    Magnification is the ability to make things look larger than they really are. It involves the use of lenses or other optical devices to increase the apparent size of an object, allowing for a more detailed view. This can be useful in various fields such as microscopy, photography, and astronomy, where the ability to see small or distant objects in greater detail is important. Magnification is achieved by manipulating the path of light rays, resulting in an enlarged image that allows for better observation and analysis.

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  • 8. 

    __________________ is another term for the sharpness/clarity of an image.

    Correct Answer
    Resolution
    Explanation
    Resolution is another term for the sharpness/clarity of an image. It refers to the number of pixels or dots per inch (DPI) that can be displayed on a screen or printed on a physical medium. The higher the resolution, the more detail and sharpness the image will have. A higher resolution allows for clearer and more defined images, while a lower resolution may result in pixelation and loss of detail. Therefore, resolution is directly related to the sharpness and clarity of an image.

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  • 9. 

    Electron microscopes use a beam of electrons to produce images, the resolution is much better than the image of a light microscope.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Electron microscopes use a beam of electrons instead of light to produce images, resulting in much higher resolution compared to light microscopes. This is because electrons have a much smaller wavelength than visible light, allowing for the visualization of smaller details and structures in the sample being observed.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 18, 2014
    Quiz Created by
    Willi Colbert
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